From the author's Preface I have tried simply to give an account of the main features of Aristotle's philosophy as it stands before us in his works. I have written little by way of criticism. It is especially true that the history of philosophy is an implicit criticism of the earlier systems of thought. What is true in Aristotle has become part, and no small part, of the heritage of all educated men; what is false has been gradually rejected, so that explicit criticism is now hardly necessary.
